Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica
Satellite data and a 35‐year hindcast of the Amundsen Sea Embayment summer climate using the WRF model are used to understand how regional and large‐scale atmospheric variability affects thinning of ice shelves in this sector of West Antarctica by melting from above and below (linked to intrusions o...
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American Geophysical Union
2018
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Online Access: | http://nora.nerc.ac.uk/id/eprint/519972/ https://nora.nerc.ac.uk/id/eprint/519972/1/Deb_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2018GL077092 |
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ftnerc:oai:nora.nerc.ac.uk:519972 2023-05-15T13:23:36+02:00 Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica Deb, Pranab Orr, Andrew Bromwich, David H. Nicolas, Julien P. Turner, John Hosking, J. Scott 2018-05-30 text http://nora.nerc.ac.uk/id/eprint/519972/ https://nora.nerc.ac.uk/id/eprint/519972/1/Deb_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2018GL077092 en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/519972/1/Deb_et_al-2018-Geophysical_Research_Letters.pdf Deb, Pranab; Orr, Andrew orcid:0000-0001-5111-8402 Bromwich, David H.; Nicolas, Julien P.; Turner, John orcid:0000-0002-6111-5122 Hosking, J. Scott orcid:0000-0002-3646-3504 . 2018 Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica. Geophysical Research Letters, 45 (9). 4124-4133. https://doi.org/10.1029/2018GL077092 <https://doi.org/10.1029/2018GL077092> Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.1029/2018GL077092 2023-02-04T19:46:32Z Satellite data and a 35‐year hindcast of the Amundsen Sea Embayment summer climate using the WRF model are used to understand how regional and large‐scale atmospheric variability affects thinning of ice shelves in this sector of West Antarctica by melting from above and below (linked to intrusions of warm water caused by anomalous westerlies over the continental shelf edge). El Niño episodes are associated with an increase in surface melt, but do not have a statistically significant impact on westerly winds over the continental shelf edge. The location of the Amundsen Sea Low (ASL) and the polarity of the Southern Annular Mode (SAM) have negligible impact on surface melting, although a positive SAM and eastward shift of the ASL cause anomalous westerlies over the continental shelf edge. The projected future increase in El Niño episodes and positive SAM could therefore increase the risk of disintegration of West Antarctic ice shelves. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctica Ice Shelf Ice Shelves West Antarctica Natural Environment Research Council: NERC Open Research Archive Antarctic West Antarctica Amundsen Sea Geophysical Research Letters 45 9 4124 4133 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Satellite data and a 35‐year hindcast of the Amundsen Sea Embayment summer climate using the WRF model are used to understand how regional and large‐scale atmospheric variability affects thinning of ice shelves in this sector of West Antarctica by melting from above and below (linked to intrusions of warm water caused by anomalous westerlies over the continental shelf edge). El Niño episodes are associated with an increase in surface melt, but do not have a statistically significant impact on westerly winds over the continental shelf edge. The location of the Amundsen Sea Low (ASL) and the polarity of the Southern Annular Mode (SAM) have negligible impact on surface melting, although a positive SAM and eastward shift of the ASL cause anomalous westerlies over the continental shelf edge. The projected future increase in El Niño episodes and positive SAM could therefore increase the risk of disintegration of West Antarctic ice shelves. |
format |
Article in Journal/Newspaper |
author |
Deb, Pranab Orr, Andrew Bromwich, David H. Nicolas, Julien P. Turner, John Hosking, J. Scott |
spellingShingle |
Deb, Pranab Orr, Andrew Bromwich, David H. Nicolas, Julien P. Turner, John Hosking, J. Scott Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica |
author_facet |
Deb, Pranab Orr, Andrew Bromwich, David H. Nicolas, Julien P. Turner, John Hosking, J. Scott |
author_sort |
Deb, Pranab |
title |
Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica |
title_short |
Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica |
title_full |
Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica |
title_fullStr |
Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica |
title_full_unstemmed |
Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica |
title_sort |
summer drivers of atmospheric variability affecting ice shelf thinning in the amundsen sea embayment, west antarctica |
publisher |
American Geophysical Union |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/519972/ https://nora.nerc.ac.uk/id/eprint/519972/1/Deb_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2018GL077092 |
geographic |
Antarctic West Antarctica Amundsen Sea |
geographic_facet |
Antarctic West Antarctica Amundsen Sea |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Ice Shelf Ice Shelves West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Ice Shelf Ice Shelves West Antarctica |
op_relation |
https://nora.nerc.ac.uk/id/eprint/519972/1/Deb_et_al-2018-Geophysical_Research_Letters.pdf Deb, Pranab; Orr, Andrew orcid:0000-0001-5111-8402 Bromwich, David H.; Nicolas, Julien P.; Turner, John orcid:0000-0002-6111-5122 Hosking, J. Scott orcid:0000-0002-3646-3504 . 2018 Summer drivers of atmospheric variability affecting ice shelf thinning in the Amundsen Sea Embayment, West Antarctica. Geophysical Research Letters, 45 (9). 4124-4133. https://doi.org/10.1029/2018GL077092 <https://doi.org/10.1029/2018GL077092> |
op_doi |
https://doi.org/10.1029/2018GL077092 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
9 |
container_start_page |
4124 |
op_container_end_page |
4133 |
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1766373444322066432 |